People get really weird about significant jewelry. My husband gave me a promise ring before we got engaged. He happened to give it to me for Christmas, right around the time his sister's (first) divorce was finalized. When SIL* saw me wearing it, (while visiting a dying relative in the hospital) she told me to move it off of my ring finger. It wasn't appropriate, she told me, and what would I do when I got my "real" ring?
Then, afterwards she told me that when she saw the ring, before DH gave it to me, she told him to take it back because it was a "green precious stone" and everybody knew that "green precious stones" were her thing. DH refused, since the stone was my birthstone and she didn't get any input in the decision anyway.
The truth, was that she just didn't want anyone to be wearing anything resembling an engagement ring while she was recently divorced. So I shrugged, told her I didn't see how my jewelry was her business and turned my attention to the sick relative.
I don't know why people make these strange, awkward statements when other people have made huge life-changing decisions. It's probably something to do with insecurities, regrets, weather patterns, something.
*Heretofore known as Bad SiL for this and many many escalating incidents of bad behavior.